Mariners include Bay on roster

Bay, 34, made the team after hitting .321 with two homers and six RBI in spring training. The journeyman had signed a one-year, $1 million contract with Seattle in December.

As the Mariners set their season-opening roster on Sunday, they designated outfielder Casper Wells for assignment and added right-hander D.J. Mitchell to the 40-man roster before optioning him to triple-A Tacoma.

The Mariners have 10 days to trade Wells, release him or send him outright to the minors.

Wells hit .189 with two home runs and 14 RBI in 16 games during spring training.

Bay struggled in three seasons with the New York Mets and was released with a year left on his contract.